Medical Specialties Commons^™

A Stronger Impact On Career Development For Early- And Mid-Career Faculty, Daniel A Gorelick, Jason Gertz, Kaitlin J Basham, Lindsey S Treviño

Faculty, Staff and Students Publications

Nuclear receptors are important in normal physiology and disease. Physicians and scientists who study nuclear receptors organize and attend conferences and symposia devoted to foundational and translational nuclear receptor research, but the field lacks a platform for early-stage investigators and aspiring leaders. In 2019, Zeynep Madak-Erdogan, Rebecca Riggins, and Matthew Sikora founded Nuclear Receptor (NR) Interdisciplinary Meeting for Progress And Collaboration Together (IMPACT, https://nrimpact.com), a collaborative group designed for early- and mid-career faculty who study nuclear receptors in any context or organism [1]. NR IMPACT addresses challenges for early- and mid-career faculty. Here, we review the progress of NR IMPACT …

Effective Deep Brain Stimulation For Obsessive-Compulsive Disorder After Failed Anterior Capsulotomy: Illustrative Cases, Anthony K Allam, Nisha Giridharan, Mohammed Hasen, Garrett P Banks, Gabriel Reyes, Huy Dang, Katherine E Kabotyanski, Alyssa G Hertz, Sarah R Heilbronner, Nicole Provenza, Eric A Storch, Wayne K Goodman, Sameer A Sheth

Faculty, Staff and Students Publications

BACKGROUND: Obsessive-compulsive disorder (OCD) is a psychiatric condition characterized by recurrent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions) performed to relieve distress related to the obsessions. For patients with severe illness refractory to first-line pharmacotherapy and psychotherapy, neurosurgical treatments such as deep brain stimulation (DBS) and stereotactic lesioning are an option. The choice between DBS and lesioning is often driven by patient preference, but these options are not mutually exclusive. Here, the authors highlight the success of one surgical therapy (DBS) after the failure of another (lesioning).

OBSERVATIONS: Two patients with severe, treatment-refractory OCD underwent DBS lead implantation targeting the …

Iron Deficiency And Internalizing Symptoms Among Adolescents In The National Health And Nutrition Examination Survey, Dimitri Fiani, Solangia Engler, Yang Ni, Sherecce Fields, Chadi Calarge

Faculty, Staff and Students Publications

Background: Iron Deficiency (ID) affects two billion people worldwide, predominantly adolescent girls, and may be associated with increased psychopathology. The associations between ID and symptoms of depression and anxiety in adolescents were examined using data from the National Health and Nutrition Examination Survey (NHANES), a cross-sectional survey of a nationally representative sample of non-institutionalized Americans.

Methods: The current analysis included survey cycles where both iron-related markers and mental health-related outcomes were collected in adolescents 12 to 17 years old. Acute and serious medical conditions, acute inflammation, and abnormal birth weight led to exclusion. Linear multivariable regression analyses examined the association …

A Call To Action: The Shea Research Agenda To Combat Healthcare-Associated Infections, Jennie H Kwon, Sonali D Advani, Westyn Branch-Elliman, Barbara I Braun, Vincent Chi-Chung Cheng, Kathleen Chiotos, Peggy Douglas, Shruti K Gohil, Sara C Keller, Eili Y Klein, Sarah L Krein, Eric T Lofgren, Katreena Merrill, Rebekah W Moehring, Elizabeth Monsees, Luci Perri, Felicia Scaggs Huang, Mark A Shelly, Felicia Skelton, Emily S Spivak, Pranavi V Sreeramoju, Katie J Suda, Joseph Y Ting, Gregory David Weston, Mohamed H Yassin, Matthew J Ziegler, Lona Mody

Faculty, Staff and Students Publications

No abstract provided.

Multiomic And Clinical Analysis Of Multiply Recurrent Meningiomas Reveals Risk Factors, Underlying Biology, And Insights Into Evolution, Sangami Pugazenthi, Bhuvic Patel, Collin W English, William A Leidig, Kyle P Mcgeehan, Colin R Mccornack, Shinghei Mok, Markus Anzaldua-Campos, Shervin Hosseingholi Nouri, Kaleigh Roberts, Ajay Chatrath, A Khan, Ron Gadot, Hiroko Yano, Tiemo J Klisch, Akdes S Harmanci, Akash J Patel, Albert H Kim

Faculty, Staff and Students Publications

An important subset of meningiomas behaves aggressively and is characterized by multiple recurrences. We identify clinical, genetic, and epigenetic predictors of multiply recurrent meningiomas (MRMs) and evaluate the evolution of these meningiomas in patient-matched samples. On multivariable binomial logistic regression, MRMs were significantly associated with male sex (P = 0.012), subtotal resection (P = 0.001), higher number of meningiomas on presentation (P = 0.017), and histopathological sheeting (P = 0.002). Multiomic analysis of primary meningiomas revealed that MRMs have greater copy number losses (P = 0.0313) and increased DNA methylation (P = 0.0155). In …

Neurodevelopmental Disorder Caused By Deletion Of Chaserr, A Lncrna Gene, Vijay S Ganesh, Kevin Riquin, Nicolas Chatron, Esther Yoon, Kay-Marie Lamar, Miriam C Aziz, Pauline Monin, Melanie C O'Leary, Julia K Goodrich, Kiran V Garimella, Eleina England, Ben Weisburd, François Aguet, Carlos A Bacino, David R Murdock, Hongzheng Dai, Jill A Rosenfeld, Lisa T Emrick, Shamika Ketkar, Yael Sarusi, Damien Sanlaville, Saima Kayani, Brian Broadbent, Alisée Pengam, Bertrand Isidor, Stéphane Bezieau, Benjamin Cogné, Daniel G Macarthur, Igor Ulitsky, Gemma L Carvill, Anne O'Donnell-Luria

Faculty, Staff and Students Publications

No abstract provided.

Identification Of Allele-Specific Kiv-2 Repeats And Impact On Lp(A) Measurements For Cardiovascular Disease Risk, Sairam Behera, Jonathan R Belyeu, Xiao Chen, Luis F Paulin, Ngoc Quynh H Nguyen, Emma Newman, Medhat Mahmoud, Vipin K Menon, Qibin Qi, Parag Joshi, Santica Marcovina, Massimiliano Rossi, Eric Roller, James Han, Vitor Onuchic, Christy L Avery, Christie M Ballantyne, Carlos J Rodriguez, Robert C Kaplan, Donna M Muzny, Ginger A Metcalf, Richard A Gibbs, Bing Yu, Eric Boerwinkle, Michael A Eberle, Fritz J Sedlazeck

Faculty, Staff and Students Publications

The abundance of Lp(a) protein holds significant implications for the risk of cardiovascular disease (CVD), which is directly impacted by the copy number (CN) of KIV-2, a 5.5 kbp sub-region. KIV-2 is highly polymorphic in the population and accurate analysis is challenging. In this study, we present the DRAGEN KIV-2 CN caller, which utilizes short reads. Data across 166 WGS show that the caller has high accuracy, compared to optical mapping and can further phase approximately 50% of the samples. We compared KIV-2 CN numbers to 24 previously postulated KIV-2 relevant SNVs, revealing that many are ineffective predictors of KIV-2 …

Tick-Borne Diseases And Pregnancy: A Narrative Review Evaluating Pregnancy Complications Caused By Tick-Borne Diseases, Michael W Curtis, Job E Lopez

Faculty, Staff and Students Publications

Ticks are vectors of public health concern because the pathogens they transmit can cause detrimental diseases in humans. Lyme disease, tick-borne relapsing fever, human granulocytic anaplasmosis, Rocky Mountain spotted fever, tick-borne encephalitis, Crimean-Congo hemorrhagic fever, and babesiosis are some of the most common diseases caused by the pathogens transmitted by ticks. The overlap between human activities and tick habitats is growing, contributing to an increase in tick-borne disease cases. Unfortunately, pregnancy as a risk factor for tick-borne diseases is largely ignored. In this narrative review we use case reports, epidemiological studies, and animal studies to evaluate the maternal, pregnancy, and …

The Growing Divide Between Teaching Empathy And Being Empathetic, Arindam Sarkar

Faculty, Staff and Students Publications

No abstract provided.

Personalized Copd Care: The Future Of Precision-Based Therapies, Leslie K Appleton, Nicola A Hanania, Muhammad Adrish

Faculty, Staff and Students Publications

Chronic obstructive pulmonary disease (COPD) is a progressive respiratory illness characterized by long-standing respiratory symptoms and airflow limitation. It is a major contributor to respiratory disease-related deaths and currently ranked as the sixth leading cause of mortality in the United States. Approved pharmacological therapies for the stable disease primarily consist of inhaled short and long-acting bronchodilators, inhaled corticosteroids, azithromycin, and roflumilast. In recent years, significant progress has been made in the management of COPD through the identification of different COPD phenotypes and endotypes, which allows for a more personalized treatment approach. While earlier studies investigating targeted therapies were less promising, …

Construction And Characterization Of Dna Libraries From Cultured Phages And Environmental Viromes, Carmen Gu Liu, Brianna E Thompson, James D Chang, Lorna Min, Anthony W Maresso

Faculty, Staff and Students Publications

Despite many efforts to understand and leverage the functional potential of environmental viromes, most bacteriophage genes are largely uncharacterized. To explore novel biology from uncultivated microbes like phages, metagenomics has emerged as a powerful tool to directly mine new genes without the need to culture the diverse microbiota and the viruses within. When a pure computational approach cannot infer gene function, it may be necessary to create a DNA library from environmental genomic DNA, followed by the screening of that library for a particular function. However, these screens are often initiated without a metagenomic analysis of the completed DNA library …

Cortical Acetylcholine Dynamics Are Predicted By Cholinergic Axon Activity And Behavior State, Erin Neyhart, Na Zhou, Brandon R Munn, Robert G Law, Cameron Smith, Zakir H Mridha, Francisco A Blanco, Guochuan Li, Yulong Li, Ming Hu, Matthew J Mcginley, James M Shine, Jacob Reimer

Faculty, Staff and Students Publications

Acetylcholine (ACh) is thought to play a role in driving the rapid, spontaneous brain-state transitions that occur during wakefulness; however, the spatiotemporal properties of cortical ACh activity during these state changes are still unclear. We perform simultaneous imaging of GRAB-ACh sensors, GCaMP-expressing basal forebrain axons, and behavior to address this question. We observed a high correlation between axon and GRAB-ACh activity around periods of locomotion and pupil dilation. GRAB-ACh fluorescence could be accurately predicted from axonal activity alone, and local ACh activity decreased at farther distances from an axon. Deconvolution of GRAB-ACh traces allowed us to account for sensor kinetics …

Native Mass Spectrometry Of Membrane Protein-Lipid Interactions In Different Detergent Environments, Smriti Kumar, Lauren Stover, Lie Wang, Hanieh Bahramimoghaddam, Ming Zhou, David H Russell, Arthur Laganowsky

Faculty, Staff and Students Publications

Native mass spectrometry (MS) reveals the role of specific lipids in modulating membrane protein structure and function. Membrane proteins solubilized in detergents are often introduced into the mass spectrometer. However, detergents commonly used for structural studies, such as dodecylmaltoside, tend to generate highly charged ions, leading to protein unfolding, thereby diminishing their utility in characterizing protein–lipid interactions. Thus, there is a critical need to develop approaches to investigate protein–lipid interactions in different detergents. Here, we demonstrate how charge-reducing molecules, such as spermine and trimethylamine-N-oxide, enable the opportunity to characterize lipid binding to the bacterial water channel (AqpZ) and …

The Giab Genomic Stratifications Resource For Human Reference Genomes, Nathan Dwarshuis, Divya Kalra, Jennifer Mcdaniel, Philippe Sanio, Pilar Alvarez Jerez, Bharati Jadhav, Wenyu Eddy Huang, Rajarshi Mondal, Ben Busby, Nathan D Olson, Fritz J Sedlazeck, Justin Wagner, Sina Majidian, Justin M Zook

Faculty, Staff and Students Publications

Despite the growing variety of sequencing and variant-calling tools, no workflow performs equally well across the entire human genome. Understanding context-dependent performance is critical for enabling researchers, clinicians, and developers to make informed tradeoffs when selecting sequencing hardware and software. Here we describe a set of “stratifications,” which are BED files that define distinct contexts throughout the genome. We define these for GRCh37/38 as well as the new T2T-CHM13 reference, adding many new hard-to-sequence regions which are critical for understanding performance as the field progresses. Specifically, we highlight the increase in hard-to-map and GC-rich stratifications in CHM13 relative to the …

Case 32-2024: A 72-Year-Old Woman With Dyspnea, Dysphagia, And Dysarthria, Stephanie V Sherman, Lucas X Marinacci, Sandra P Rincon, Elizabeth M Raynor

Faculty, Staff and Students Publications

No abstract provided.

Acute On Chronic Rheumatic Valvulitis, Natalie K Craik, Joseph Burns, Nirica Borges, Tam T Doan, Amy E Sanyahumbi, Edward J Hickey, Debra L Kearney, Ryan H Rochat, Eyal Muscal, Thomas Glenn

Faculty, Staff and Students Publications

An 11-year-old boy presented in distress with tachypnea, holosystolic murmur, and a gallop. Echocardiography revealed mitral valve thickening and severe regurgitation. He required valve replacement with pathology consistent with acute on chronic valvulitis. This case underscores the importance of considering rheumatic heart disease, despite no preceding suspicious history.

Molecular Mechanisms Of Biofilm Formation In Helicobacter Pylori, Kartika Afrida Fauzia, Wiwin Is Effendi, Ricky Indra Alfaray, Hoda M Malaty, Yoshio Yamaoka, Muhammad Mifthussurur

Faculty, Staff and Students Publications

BACKGROUND: Biofilm formation in

METHODS: We conducted a literature review analysis of the published articles on the

RESULTS: The results showed that biofilm formation starts as adhesion and progresses through micro-colonies, maturation, and dispersion in a planktonic form. Moreover, specific genes modulate each phase of biofilm formation. Few studies have shown that mechanisms, such as quorum sensing and diffusible signal factors, enhance coordination among bacteria when switching from biofilm to planktonic states. Different protein expressions were also observed between planktonic and biofilm strains, and the biofilm architecture was supported by exopolysaccharides, extracellular DNA, and outer membrane vesicles.

CONCLUSIONS: This infrastructure …

Exposure To Per- And Polyfluoroalkyl Substances And Alterations In Plasma Microrna Profiles In Children, Yijie Li, Brittney O Baumert, Nikos Stratakis, Jesse A Goodrich, Haotian Wu, Shelley H Liu, Hongxu Wang, Emily Beglarian, Scott M Bartell, Sandrah Proctor Eckel, Douglas Walker, Damaskini Valvi, Michele Andrea La Merrill, Thomas H Inge, Todd Jenkins, Justin R Ryder, Stephanie Sisley, Rohit Kohli, Stavra A Xanthakos, Marina Vafeiadi, Aikaterini Margetaki, Theano Roumeliotaki, Max Aung, Rob Mcconnell, Andrea Baccarelli, David Conti, Lida Chatzi

Faculty, Staff and Students Publications

BACKGROUND: Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals that persist in the environment and can accumulate in humans, leading to adverse health effects. MicroRNAs (miRNAs) are emerging biomarkers that can advance the understanding of the mechanisms of PFAS effects on human health. However, little is known about the associations between PFAS exposures and miRNA alterations in humans.

OBJECTIVE: To investigate associations between PFAS concentrations and miRNA levels in children.

METHODS: Data from two distinct cohorts were utilized: 176 participants (average age 17.1 years; 75.6% female) from the Teen-Longitudinal Assessment of Bariatric Surgery (Teen-LABS) cohort in the United States, and …

Sall4 And Gata4 Induce Cardiac Fibroblast Transition Towards A Partially Multipotent State With Cardiogenic Potential, Hong Gao, Saliha Pathan, Beverly R E A Dixon, Aarthi Pugazenthi, Megumi Mathison, Tamer M A Mohamed, Todd K Rosengart, Jianchang Yang

Faculty, Staff and Students Publications

Cardiac cellular fate transition holds remarkable promise for the treatment of ischemic heart disease. We report that overexpressing two transcription factors, Sall4 and Gata4, which play distinct and overlapping roles in both pluripotent stem cell reprogramming and embryonic heart development, induces a fraction of stem-like cells in rodent cardiac fibroblasts that exhibit unlimited ex vivo expandability with clonogenicity. Transcriptomic and phenotypic analyses reveal that around 32 ± 6.4% of the expanding cells express Nkx2.5, while 13 ± 3.6% express Oct4. Activated signaling pathways like PI3K/Akt, Hippo, Wnt, and multiple epigenetic modification enzymes are also detected. Under suitable conditions, these cells …

Magnetoelectrics For Implantable Bioelectronics: Progress To Date, Fatima Alrashdan, Kaiyuan Yang, Jacob T Robinson

Faculty, Staff and Students Publications

The coupling of magnetic and electric properties manifested in magnetoelectric (ME) materials has unlocked numerous possibilities for advancing technologies like energy harvesting, memory devices, and medical technologies. Due to this unique coupling, the magnetic properties of these materials can be tuned by an electric field; conversely, their electric polarization can be manipulated through a magnetic field. Over the past seven years, our lab work has focused on leveraging these materials to engineer implantable bioelectronics for various neuromodulation applications. One of the main challenges for bioelectronics is to design miniaturized solutions that can be delivered with minimally invasive procedures and yet …

Sdeper: A Hybrid Machine Learning And Regression Method For Cell-Type Deconvolution Of Spatial Barcoding-Based Transcriptomic Data, Yunqing Liu, Ningshan Li, Ji Qi, Gang Xu, Jiayi Zhao, Nating Wang, Xiayuan Huang, Wenhao Jiang, Huanhuan Wei, Aurélien Justet, Taylor S Adams, Robert Homer, Amei Amei, Ivan O Rosas, Naftali Kaminski, Zuoheng Wang, Xiting Yan

Faculty, Staff and Students Publications

Spatial barcoding-based transcriptomic (ST) data require deconvolution for cellular-level downstream analysis. Here we present SDePER, a hybrid machine learning and regression method to deconvolve ST data using reference single-cell RNA sequencing (scRNA-seq) data. SDePER tackles platform effects between ST and scRNA-seq data, ensuring a linear relationship between them while addressing sparsity and spatial correlations in cell types across capture spots. SDePER estimates cell-type proportions, enabling enhanced resolution tissue mapping by imputing cell-type compositions and gene expressions at unmeasured locations. Applications to simulated data and four real datasets showed SDePER's superior accuracy and robustness over existing methods.

When Less Is More: Sketching With Minimizers In Genomics, Malick Ndiaye, Silvia Prieto-Baños, Lucy M Fitzgerald, Ali Yazdizadeh Kharrazi, Sergey Oreshkov, Christophe Dessimoz, Fritz J Sedlazeck, Natasha Glover, Sina Majidian

Faculty, Staff and Students Publications

The exponential increase in sequencing data calls for conceptual and computational advances to extract useful biological insights. One such advance, minimizers, allows for reducing the quantity of data handled while maintaining some of its key properties. We provide a basic introduction to minimizers, cover recent methodological developments, and review the diverse applications of minimizers to analyze genomic data, including de novo genome assembly, metagenomics, read alignment, read correction, and pangenomes. We also touch on alternative data sketching techniques including universal hitting sets, syncmers, or strobemers. Minimizers and their alternatives have rapidly become indispensable tools for handling vast amounts of data.

Integrated Electrophysiological And Genomic Profiles Of Single Cells Reveal Spiking Tumor Cells In Human Glioma, Rachel N Curry, Qianqian Ma, Malcolm F Mcdonald, Yeunjung Ko, Snigdha Srivastava, Pey-Shyuan Chin, Peihao He, Brittney Lozzi, Prazwal Athukuri, Junzhan Jing, Su Wang, Arif O Harmanci, Benjamin Arenkiel, Xiaolong Jiang, Benjamin Deneen, Ganesh Rao, Akdes Serin Harmanci

Faculty, Staff and Students Publications

Prior studies have described the complex interplay that exists between glioma cells and neurons, however, the electrophysiological properties endogenous to tumor cells remain obscure. To address this, we employed Patch-sequencing on human glioma specimens and found that one third of patched cells in IDH mutant (IDHmut) tumors demonstrate properties of both neurons and glia by firing single, short action potentials. To define these hybrid cells (HCs) and discern if they are of tumoral origin, we developed a computational tool, Single Cell Rule Association Mining (SCRAM), to annotate each cell individually. SCRAM revealed that HCs represent tumor and non-tumor cells that …

Multicenter Pivotal Study Of The Alterra Adaptive Prestent For The Treatment Of Pulmonary Regurgitation, V Vivian Dimas, Vasilis Babaliaros, Dennis Kim, D Scott Lim, Gareth Morgan, Thomas K Jones, Aimee K Armstrong, Darren Berman, Jamil Aboulhosn, Vaikom S Mahadevan, Matthew J Gillespie, David Balzer, Thomas Zellers, Xiao Yu, Girish Shirali, Anitha Parthiban, Jonathan Leipsic, Philipp Blanke, Evan Zahn, Shabana Shahanavaz

Faculty, Staff and Students Publications

Background: A dilated native right ventricular outflow tract (RVOT) presents unique challenges for transcatheter management using balloon-expandable valves. The Alterra Adaptive Prestent was designed to expand transcatheter therapy to treat patients with dilated RVOTs.

Objectives: The aim of this study was to report 2-year outcomes of the main cohort of the ALTERRA (Multicenter Study of Congenital Pulmonic Valve Dysfunction Studying the SAPIEN 3 THV With the Alterra Adaptive Prestent) pivotal trial using the prestent with transcatheter pulmonary valve replacement.

Methods: The prestent device used with the 29 mm SAPIEN 3 transcatheter heart valve (THV) was evaluated for the management of …

Stratomod: Predicting Sequencing And Variant Calling Errors With Interpretable Machine Learning, Nathan Dwarshuis, Peter Tonner, Nathan D Olson, Fritz J Sedlazeck, Justin Wagner, Justin M Zook

Faculty, Staff and Students Publications

Despite the variety in sequencing platforms, mappers, and variant callers, no single pipeline is optimal across the entire human genome. Therefore, developers, clinicians, and researchers need to make tradeoffs when designing pipelines for their application. Currently, assessing such tradeoffs relies on intuition about how a certain pipeline will perform in a given genomic context. We present StratoMod, which addresses this problem using an interpretable machine-learning classifier to predict germline variant calling errors in a data-driven manner. We show StratoMod can precisely predict recall using Hifi or Illumina and leverage StratoMod's interpretability to measure contributions from difficult-to-map and homopolymer regions for …

Sex Hormones And Risk Of Lung And Colorectal Cancers In Women: A Mendelian Randomization Study, Marion Denos, Yi-Qian Sun, Ben Michael Brumpton, Yafang Li, Demetrius Albanes, Andrea Burnett-Hartman, Peter T Campbell, Sébastien Küry, Christopher I Li, Emily White, Jewel N Samadder, Mark A Jenkins, Xiao-Mei Mai

Faculty, Staff and Students Publications

The roles of sex hormones such as estradiol, testosterone, and sex hormone-binding globulin (SHBG) in the etiology of lung and colorectal cancers in women, among the most common cancers after breast cancer, are unclear. This Mendelian randomization (MR) study evaluated such potential causal associations in women of European ancestry. We used summary statistics data from genome-wide association studies on sex hormones and from the Trøndelag Health Study (HUNT) and large consortia on cancers. There was suggestive evidence of 1-standard deviation increase in total testosterone levels being associated with a lower risk of lung non-adenocarcinoma (hazard ratio 0.60, 95% confidence interval …

Mates: A Deep Learning-Based Model For Locus-Specific Quantification Of Transposable Elements In Single Cell, Ruohan Wang, Yumin Zheng, Zijian Zhang, Kailu Song, Erxi Wu, Xiaopeng Zhu, Tao P Wu, Jun Ding

Faculty, Staff and Students Publications

Transposable elements (TEs) are crucial for genetic diversity and gene regulation. Current single-cell quantification methods often align multi-mapping reads to either 'best-mapped' or 'random-mapped' locations and categorize them at the subfamily levels, overlooking the biological necessity for accurate, locus-specific TE quantification. Moreover, these existing methods are primarily designed for and focused on transcriptomics data, which restricts their adaptability to single-cell data of other modalities. To address these challenges, here we introduce MATES, a deep-learning approach that accurately allocates multi-mapping reads to specific loci of TEs, utilizing context from adjacent read alignments flanking the TE locus. When applied to diverse single-cell …

Porous Iron Electrodes Reduce Energy Consumption During Electrocoagulation Of A Virus Surrogate: Insights Into Performance Enhancements Using Three-Dimensional Neutron Computed Tomography, Kyungho Kim, Cesar Castillo, Gyoung G Jang, Yuxuan Zhang, Costas Tsouris, Shankararaman Chellam

Faculty, Staff and Students Publications

Electrocoagulation has attracted significant attention as an alternative to conventional chemical coagulation because it is capable of removing a wide range of contaminants and has several potential advantages. In contrast to most electrocoagulation research that has been performed with nonporous electrodes, in this study, we demonstrate energy-efficient iron electrocoagulation using porous electrodes. In batch operation, investigation of the external pore structures through optical microscopy suggested that a low porosity electrode with sparse connection between pores may lead to mechanical failure of the pore network during electrolysis, whereas a high porosity electrode is vulnerable to pore clogging. Electrodes with intermediate porosity, …

Churning The Tides Of Care: When Nurse Turnover Makes Waves In Patient Access To Primary Care, Kelley Arredondo, Ashley M Hughes, Houston F Lester, Trang N D Pham, Laura A Petersen, Lechauncy Woodard, Richard Sorelle, Cheng Rebecca Jiang, Frederick L Oswald, Daniel R Murphy, Hilary N Touchett, Joshua Hamer, Sylvia J Hysong

Faculty, Staff and Students Publications

BACKGROUND: Team-based primary care (PC) enhances the quality of and access to health care. The Veterans Health Administration (VHA) implements team-based care through Patient Aligned Care Teams (PACTs), consisting of four core members: a primary care provider, registered nurse (RN) care manager, licensed vocational nurse, and scheduling clerk. RNs play a central role: they coordinate patient care, manage operational needs, and serve as a patient point of contact. Currently, it is not known how varying levels of RN staffing on primary care teams impact patient outcomes.

OBJECTIVE: This study aims to empirically assess how the stability of RN staffing within …

Larp1 Haploinsufficiency Is Associated With An Autosomal Dominant Neurodevelopmental Disorder, James Chettle, Raymond J Louie, Olivia Larner, Robert Best, Kevin Chen, Josephine Morris, Zinaida Dedeic, Anna Childers, R Curtis Rogers, Barbara R Dupont, Cindy Skinner, Sébastien Küry, Kevin Uguen, Marc Planes, Danielle Monteil, Megan Li, Aviva Eliyahu, Lior Greenbaum, Nofar Mor, Thomas Besnard, Bertrand Isidor, Benjamin Cogné, Alyssa Blesson, Anne Comi, Ingrid M Wentzensen, Blake Vuocolo, Seema R Lalani, Roberta Sierra, Lori Berry, Kent Carter, Stephan J Sanders, Sarah P Blagden

Faculty, Staff and Students Publications

Autism spectrum disorder (ASD) is a neurodevelopmental disorder (NDD) that affects approximately 4% of males and 1% of females in the United States. While causes of ASD are multi-factorial, single rare genetic variants contribute to around 20% of cases. Here, we report a case series of seven unrelated probands (6 males, 1 female) with ASD or another variable NDD phenotype attributed to de novo heterozygous loss of function or missense variants in the gene LARP1 (La ribonucleoprotein 1). LARP1 encodes an RNA-binding protein that post-transcriptionally regulates the stability and translation of thousands of mRNAs, including those regulating cellular metabolism and …